From f503b8cff520c5b17d929c7ee8304c2eab7bb20b Mon Sep 17 00:00:00 2001
From: Yangchao Zhou <zhouyates@gmail.com>
Date: Sun, 11 Sep 2016 17:59:23 +0800
Subject: [PATCH] kni: fix error rollback kernel crash

Fixes: 9c61145ff6f9 ("kni: allow multiple threads")

Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_eal/linuxapp/kni/kni_misc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
index 3501dc1bac..071b1585b5 100644
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
@@ -547,7 +547,9 @@ kni_ioctl_create(struct net *net,
 	if (ret) {
 		KNI_ERR("error %i registering device \"%s\"\n",
 					ret, dev_info.name);
+		kni->net_dev = NULL;
 		kni_dev_remove(kni);
+		free_netdev(net_dev);
 		return -ENODEV;
 	}
 
-- 
2.20.1